(full paper is archived in the Miller Library)
Title: The effects of petroleum fractions on the fertilization and cleavage of the sea urchin, Strongylocentrotus purpuratus
Student Author(s): Allen, Heather
Faculty Advisor(s): Pearse, J. S.
Location: Final Papers Biology 175H
Date: June 1971
Keywords: marine pollution
Abstract: Petroleum products vary considerably in their composition, and consequently, they differ in toxicity to living systems. In this study, the effects of various dilutions fo different kinds of oils were testedon the fertiliation and early development of the sea urchin, Strongylocentrotus purpuratus. Most of the oils had little effect in the fertilization, but many of them did inhibit early cleavage. Crude oils and heavy bunker oils were the most toxic to cleavage, even at concentrations of 6.25% saturation, while the diesel and jet fuels were the least toxic.